Incubator or brooder lamp.



PATENTED NOV. 12. 1907.

P. M. WIOKSTRUM. INCUBATOR 0R BROODER LAMP.

APPLICATION FILED IEIB. 4. 1907.

WiZfZ/YZWZ, f/WENTOR.

A T'IOR/VE Y5 PATENT OFFICE.

PETER M. WICKSTRUM, OF LINCOLN, NEBRASKA.

INGUIBATOR OR BROODER LAMP.

Specification of Letters Patent.

Patented Nov. 12, 1907.

Application filed February 4,1907. Serial No. 355.665.

To all whom it may concern:

Be it known that I, PETER M. WICKSTRUM, a citizen of the United States, residing at Lincoln, in the county of Lancaster and State of Nebraska, have invented a new and useful Incubator or Brooder Lamp, of which the following is a specification.

This invention relates to a heater for incubators or breeders of that type having a reservoir in the top of the bowl or body for receiving water so as to keep down the temperature of the oil in the bowl as low as possible, and thus render the lamp or heater more safe.

The invention has for one of its objects to provide a lamp or heater body having separate oil and water reservoirs, the body being composed of two pressed sheetmetal parts suitably jointed together to produce an extremely simple, inexpensive and substantial construction.

A further object of the invention is to provide a depressed or pan-shaped top having swaged openings for receiving the burner and filler collars, the swaged edges of the openings having the threefold function of stiffening the top of the lamp body, of supporting the burner and filler collars at a greater height than otherwise, and of enabling a better joint to be soldered around the collars at the said openings.

With these and other objects in view, as will appear as the nature of the invention is better understood, the invention comprises the various novel features of construction and arrangement of parts, which will be more fully described hereinafter, and set forth with particularity in the claims append'ed'hereto.

In the accompanying drawing, which illustrates one of the embodiments of the invention, Figure 1 is a perspective view of the body of the burner. Fig. 2 is a vertical central section of the burner body. Fig. 3 is a detail view showing the construction of the joint between the two parts of the body.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

Referring to the drawing, A designates the body of the lamp or heater and B the burner which may be of any approved construction and adapted to hold a chimney O. The body A of the lamp is composed of a sheet metal oil reservoir 1 pressed by means of dies into the shape of a pan with a horizontally extending flange 2 at its upper end. The top 3 is of sheet metal and pressed by means of suitable dies into a comparatively shallow pan-shaped structure which is adapted to fit within the. top of the reservoir 1, the said top 3 being formed with a hook-shaped rim 4, as shown in Fig. 3. The depending portion of the rim 4 is lapped under the flange 2 by a suitable instrument, so as to form the lock joint shown in Fig. 2. If desired, this joint .or seam may be soldered. By snugly fitting in the reservoir 1, the top 3 serves to reinforce and strengthen the same. The top 3 is provided with a central opening for receiving the burner collar 5, which is of the usual construction and serves to support the burner B. At one side, the top is provided with an opening for receiving the filler collar 6. The collars 5 and Gare each provided with a bead 7 located slightly above the lower end thereof. In stamping out the openings, the metal is swaged to form the cylindrical flanges 8 and 9 that project upwardly. "he collars 5 and 6 are inserted in their respective openings with the flanges 8 and 9 engaging the beads of the burner and filler collar. By means of these flanges, the collars are supported at a greater height than if the beads were flush with the top 3. The flanges also serve to stiffen the top of the lamp body and, furthermore, enable a better liquid tight joint to be made around each collar. The joints around the collars are made by running solder in between the flanges in the top 3 and inner ends of the collars, this being done before the top 3 is secured to the reservoir 1. By depressing the top in the manner described, a body of water can be held therein so as to prevent the buruer body from being too highly heated.

From the foregoing description, taken in connection with the accompanying drawing, the advantages of the construction are apparent to those familiar with the art to which the invention appertains. By means of this two-piece lamp body or bowl, seams are avoided where leakage might occur. The construction is simple and the parts are so shaped that they constitute a stiff and substantial structure.

What is claimed is An incubator or brooder lamp composed of an oil reservoir pressed into pan shape and having a horizontally ex tending peripheral rim, :1 top having a depressed central portion to form a water receptacle and having upturned sides fitting, within the sides of-the oil reservior, the upper edges of the said sides being provided with a hookshaped rim lapped about the rim of the reservoir to form a sealed joint, said cover having flanges swaged upwardly from the depl ed portion of the cover, burner and filler collars engaging within said flanges and having peripheral heads thereon coiiperating with the upper edges of the respective flanges to position the collars and form solder dams at the upper side of the cover, solder applied to the joint between each flange and its respective collar from the under side of the cover, and a burner threaded into the upper end of one of the collars.

In testimony that I claim the foregoing as my own, I have hereto atiixed my signature in the presence of two witnesses.

PETER M. WICKSTRUM.

Witnesses:

T. G. FRANK,

C. M. WICKSTRUM. 

